Home / 25,419.92-38,120.52-8,775.68

Finding the Fourth Proportional to 25,419.92, 38,120.52 and 8,775.68

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Solution

The fourth proportional to 25,419.92, 38,120.52 and 8,775.68 is: 13,160.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419.92 : 38,120.52 = 8,775.68 : x
  2. Step 2: Convert to fraction form
    25,419.92/38,120.52 = 8,775.68/x
  3. Step 3: Cross multiply
    25,419.92x = 38,120.52 × 8,775.68
  4. Step 4: Simplify right side
    25,419.92x = 334,533,484.95
  5. Step 5: Solve for x
    x = 334,533,484.95/25,419.92
  6. Step 6: Final answer
    x = 13,160.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.